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Noncovalent Lone Pair⋅⋅⋅(No-π!)-Heteroarene Interactions: The Janus-Faced Hydroxy Group

Aliev, AE; Pavlakos, I; Arif, T; Aliev, AE; Motherwell, WB; Tizzard, GJ; Coles, SJ; (2015) Noncovalent Lone Pair⋅⋅⋅(No-π!)-Heteroarene Interactions: The Janus-Faced Hydroxy Group. Angewandte Chemie International Edition , 54 (28) pp. 8169-8174. 10.1002/anie.201502103. Green open access

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Abstract

A comparative study by NMR using designed top pan molecular balances demonstrates that the noncovalent interaction of a hydroxyl group with π-deficient pyrazine and quinoxaline units involves a lone pair•••heteroarene interaction which is much stronger and essentially solvent independent when measured relative to the classical π-facial hydrogen bond to a benzene ring. Alkyl fluorides also prefer the heteroarene rings over the benzene ring. The attractive interaction between a quinoxaline and a terminal alkyne is also stronger than the intramolecular hydrogen bond to an arene.

Type: Article
Title: Noncovalent Lone Pair⋅⋅⋅(No-π!)-Heteroarene Interactions: The Janus-Faced Hydroxy Group
Location: Switzerland
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/anie.201502103
Publisher version: http://dx.doi.org/10.1002/anie.201502103
Language: English
Additional information: This is the peer reviewed version of the following article: Aliev, AE; Pavlakos, I; Arif, T; Aliev, AE; Motherwell, WB; Tizzard, GJ; Coles, SJ; (2015) Noncovalent Lone Pair⋅⋅⋅(No-π!)-Heteroarene Interactions: The Janus-Faced Hydroxy Group. Angewandte Chemie International Edition , 54 (28) pp. 8169-8174. 10.1002/anie.201502103, which has been published in final form at http://dx.doi.org10.1002/anie.201502103. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1466630
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